Sash ventilator



Oct. 3, 1933. H. D. sEvlsoN SASH VENTILATOR Filed sept. 12, lesoPatented Oct. 3, 1933 9 UNITED vsm'ras sAsH VENTILATOR Harry D. Sevison,Elkhart, Ind., assignor to The Adlake'Company, Chicago, Ill., acorporation of Illinois Application September 12, 1930 Lerial No.481,400

6 Claims.

This invention has to do with sash rail ventilators of the built-inadjustable slide type.

The object of the invention is to provide an improved ventilator of thetype described which will operate easily without sticking, will notrattle, will prevent the entry of air and water when closed, and isinexpensive to manufacture.

While the ventilator of the invention is designed primarily for use inthe bottom rail of a sash, it may be used in other places, as in doorsand panels.

Other objects and advantages of the invention will be apparent to thoseskilled in the art upon a full understanding of the construction,arrangement and operation of the improved Ventilator.

One form of the invention is presented herein for the purpose ofexemplication, but it will of course be appreciated that the inventionis susceptible of embodiment in other modified forms coming equallywithin the scope of the appended claims.

In the accompanying drawing:

Fig. 1 is an inside face view Vof the lower rail of a sash equipped withthe ventilator of the ventilator taken on the line 3-3 of Fig. 1; and

positioned within a hollow sheet metal sash rail Fig. 4 is a verticalsection through the Ventilator taken on the line 4-4 of Fig. 1.

As will be observed in the drawing, the ventilator includes an elongatedframe l which is 11. The frame is provided, adjacent the inner side ofthe rail, with a longitudinally extending guide groove 12, and isprovided, adjacent the outer side of the rail, with a longitudinallyextending row of Ventilating apertures 13 which open into the guidegroove throughout one end only of the latter.

The guide groove 12 contains an elongated slide 14 which is slightlygreater in length than the row of apertures 13 and 'is adapted to beshifted longitudinally of the groove whereby to progressively close allof the apertures. The slide 14 is held within the groove 12 by an innercover plate 15, which plate is positioned directly opposite the row ofapertures 13 against the of openings 27.

the slide 14 is retracted. A finger piece 18 is attached to one end ofthe slide 14 on the inner side thereof and projects through the slot 17in lthe plate into a position wherein it may be readily grasped forshifting the slide.

The slide 14 consists of two elongated plates 19 and 20 which arearranged in spaced parallel relation to each other. The outer plate 20is provided with inturned end flanges 21, and the inner plate 19 isprovided with outturned end flanges22 which extend beyond and lap withthe anges 21 on the outer plate. The plates 19 and 20 are pressedrespectively against the cover plate 15 and the frame 10 by bowed leafsprings 23 which are attached to one of the plates, and the upper andlower edges of the slide are sealed with the top and bottom surfaces ofthe guideway by an elongated spring strip 24 of bowed crosssection whichis'attached to the same plate as the springs 23 and bears against theupper and lower edges of the guide groove 12.

gThe Ventilating apertures `13 are exposed through an elongated openingin the outer face of the rail 11 and are covered over by a wire screen25. The screen 25 is held in position by an outer cover plate 26 whichcontains a row The plate 26 is detachably secured to the outer face vofthe rail by screws 28 which extend into the frame 10. The lower edges-29 of the Ventilating apertures 13 in the frame preferably slope towardthe lower edges of the openings 27 in the plate 26, whereby to preventaccumulation of'water in the apertures.

The slide 14, by reason of the resiliently expanded constructionthereof, provides a snug weatherproof closure for the Ventilatingopenings 13. Furthermore, the slide will not stick or bind, and will notrattle.

I claim:

1. In a Ventilator, a frame having a guideway i and a row of Ventilatingapertures opening into the guideway, and a resiliently expansible slideshiftably mounted in the guideway for progressively closing off theVentilating apertures when moved in one direction.

2. In a ventilator, a frame having a guideway l and a row of Ventilatingapertures opening into the guideway adjacent one end only of the latter,and a hollow imperforate resiliently expansible slide shiftably mountedin the guideway for Vprogressively shutting oil? the Ventilatingapertures when moved in one direction.

3. In a ventilatona frame having a guideway anda row of Ventilatingapertures opening into the guideway, an imperforate slide shiftablymounted in the guideway for progressively shutting off the Ventilatingapertures one after the other when moved in one direction, and means forpressing the slide resiliently against the portion of the guideway intowhich the Ventilating apertures open.

4. In a ventilator, a frame having a guide groove in one face thereofand a row of ventilating apertures in the other face extending throughthe frame into the guide groove adjacent one end only of the latter, aslide shiftably mounted in the groove for progressively shutting off theVentilating apertures when moved in one direc'- tion, means for pressingthe slide resiliently into snug engagement with the" edges of theventilating apertures in the groove, and a laterally projecting fingerpiece on the slide adjacent one end thereof.

5. In a ventilator, a frame having a guideway,

and a slide shiftably mounted. in the guidewayl for controllingventilation through the frame; said slide consisting of two elongatedplates arrangedin spaced parallel relation to each other, end flanges onthe plates arranged with the flanges on one embraced by the flanges onthe other, and springs housed between the plates for resilientlyseparating the same.

6; In a ventilator, a frame having a guideway, and a slide shiftablymounted in the guideway for controlling ventilation through the frame;said slide consisting of two elongated plates arranged in spacedparallel relation to each other, means'for preventing relative endwisemovement between the plates, means carried by one of the -platesforresiliently separating the same, and Van elongated spring strip carriedby one of the plates in resilient sealing engagement with the .top andbottom of the guideway.

HARRY D. SEVISON.

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